Sunday, July 14, 2013

Vans Aircraft RV-12 Airplane Build, Section 29A FWD Upper Fuselage (part 6)

Reference: pages 29A-08,29A-09, 29A-10; 5.0 hours

Today's entry will all but finish the forward upper fuselage on the RV12 aircraft. All that will be left is the final mounting of the instrument panel. One comical thing is I realized I riveted the comm radio stack supports in transposed! Below is pictured the wrong way followed by the corrected installation.





Reference: 29A-08
Step 1: Remove the excess material from the Map Door. Machine countersink all #40 holes in the map box door to fit the head of an AD3- flush rivet. Deburr all holes and edges.



Chamfer the 1/4 inch hole in the map box door with a drill bit by hand so the Camloc Fastener fits flush against the Map Box Door.



Step 2: Machine countersink all #40 holes in the SkyView Inst Panel Right to fit a AD3- flush rivet. Machine countersink all .1444 holes in the SkyView inst panel right to fit the head of an AN507C632R8 screw. Builder's note: I used a #27 100 degree countersink.



Step 3: Deburr all holes in the Map Box Hinges.

Step 4: Separate the two Map Box halves and deburr all holes.

Step 5: Rivet the Map Box Hinge to the Map Box Door.



Step 6: Blind rivet the two Map Box Halves together.



Step 7: Rivet and blind rivet the Map Box Assembly to the SkyView Inst Panel Right. Rivet the Caloc Receptacle to the Inst Panel Right Assembly.



Step 8: Blind rivet the Map Box Hinge to the lower Map Box Half.





Reference: page 29A-09

Step 1: Remove the hatch areas from the the Skyview Reinf Angle as shown in figure 2 of the RV12 plans page 29A-09.
Attach the SkyView reinf angle to the Inst Panel Left using the hardware called out.



Step 2: Attach the remaining hardware to the SV1000 Inst Panel Left. The rivet holes for the nut plates need to be countersunk before doing this.
Machine countersink the screw holes for a AN507C632R8 screw.



Builder's note: The screw holes that are used for mounting the SkyView screen are not countersunk. See picture below:





Step 3: Rivet two nutplates to the bottom of the SV Center Lnst Panel SL-40.
Machine countersink the screw holes in the SV Center Inst panel.







Now is the time to paint or otherwise finish the instrument panel. I used a flat black primer and then top coated with Rustoleum Hammer tone paint.
Reference 29A-10
Step 1: Install the SV Cent Inst Panel with the hardware called out on page 29A-10 of the RV12 plans by Van's Aircraft.



Step 2; Install the Map Box Assembly to the Panel Base>
Match-drill #19 through the holes into the Panel Base. See figure 2 page 29A-10.





Step 3: Remove the Map Box Assembly and deburr holes.



This completes the Forward Upper Fuselage section with the exception of the final mounting of the instrument panel.